1. Real and complex
2. Complex number
3. Irrational number
4. Real number
Complex number
1. -1
2. 0
3. 1
4. 4
4
1. 9/16
2. -1
3. 3/2
4. 27/64
27/64
1. x=4 or 5
2. x=3 or 2
3. x=1 or 2
4. x=1 or 3
x=1 or 3
1. 8
2. 6
3. 4
4. 1
4
1. 64
2. 6
3. 4
4. 1
64
1. 4sinxsinysinz
2. 0
3. 4sin(x-y/2)sin(z-x/2)sin(z-y/2)
4. 4sin(x-y/2)sin(y-z/2)sin(z-x/2)
4sin(x-y/2)sin(z-x/2)sin(z-y/2)
1. 0
2.
3.
4.
0